Product Description material: plastic Size: 7.5*5cm Color: green, blue, silver gray Quantity: 36 /72 pieces Package content: 36/72 *Reflective spokes 1. Reflective spokes: size (length * width: 75 * 5 mm), a pack of 36/72 pieces, suitable for all conventional round spokes. Note that these are reflective strips (no light bar, could not illuminate yourself), which reflect when the light is irradiated. 2. Reflective warning safety: Especially in the dark season (autumn & winter), the reflector bike can help to be perceived noticeably easier in traffic. Visible to all road users from a distance of at least 400 meters. 3. Improved 360 reflection: The spoke reflectors offer 360 degree visibility and thus ensure a high level of traffic safety. 4. Wide range of applications: The reflector is suitable for conventional circular standard spokes of mobile auxiliary tools such as mountain bikes, racing cars, racing cars, wheelchairs and prams. 5. Quick and easy installation: The bicycle spoke reflector is designed for quick and easy tool-free installation. No glue or special fasteners are required. Unlike other reflectors that use LED lights and battery power, bicycle spoke reflectors are energy-free and don't need to be charged.